Illinois

Storm History: Jo Daviess County, Illinois

461 episodes, 686 events since 1956

Every storm the National Weather Service has filed in Jo Daviess County, Illinois: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
686
Deaths
3
Injuries
5
Damage
$29 million
Episodes
461

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Jo Daviess County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Tornado14231$16 million
Hail11700$944,000
Thunderstorm Wind10203$362,000
Flash Flood7001$2.1 million
Winter Storm6900
Winter Weather5200$7,000
Flood2100$1.3 million
Heavy Snow1900
High Wind1500$123,000
Ice Storm1500$11,000
Drought1300$8.6 million
Extreme Cold/Wind Chill1200
Dense Fog1100
Frost/Freeze700$264,000
Blizzard700
Cold/Wind Chill500
Heat300
Strong Wind100
Sleet100
Excessive Heat100
Freezing Fog100
Lightning100$20,000
Funnel Cloud100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Jo Daviess County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Jo Daviess CountyEvery warning in Jo Daviess County since 1986Every county in Illinois

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.